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Irreversible electrochemical reaction at high voltage induced by distortion of Mn and V structural environments in Na4MnV(PO4)3

hal.structure.identifierLaboratoire réactivité et chimie des solides - UMR CNRS 7314 UPJV [LRCS]
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierTiamat Energy
dc.contributor.authorPARK, Sunkyu
hal.structure.identifierLaboratoire réactivité et chimie des solides - UMR CNRS 7314 UPJV [LRCS]
hal.structure.identifierRéseau sur le stockage électrochimique de l'énergie [RS2E]
dc.contributor.authorCHOTARD, Jean-Noël
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierRéseau sur le stockage électrochimique de l'énergie [RS2E]
dc.contributor.authorCARLIER, Dany
hal.structure.identifierALBA Synchrotron, Cerdanyola del Vallés, Barcelona
dc.contributor.authorFAUTH, François
hal.structure.identifierRéseau sur le stockage électrochimique de l'énergie [RS2E]
dc.contributor.authorIADECOLA, Antonella
hal.structure.identifierLaboratoire réactivité et chimie des solides - UMR CNRS 7314 UPJV [LRCS]
hal.structure.identifierRéseau sur le stockage électrochimique de l'énergie [RS2E]
dc.contributor.authorMASQUELIER, Christian
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierRéseau sur le stockage électrochimique de l'énergie [RS2E]
dc.contributor.authorCROGUENNEC, Laurence
dc.date.issued2023-04-04
dc.identifier.issn0897-4756
dc.description.abstractEnAs the importance of developing low-cost and high-capacity materials is emerging, Mn-based Na4MnV(PO4)3 positive electrode materials that allow multiredox reactions are in the spotlight for Na-ion batteries. The structure that gives highly reversible electrochemical reactions, when two Na+ (out of four) are de-inserted, deteriorates rapidly when the third Na+ is extracted at high voltage, resulting in poor cyclability. In this work, using synchrotron-based operando techniques, we perform long-range and local structural analyses to determine the origins of the rapid structural decay of Na4MnV(PO4)3 when the third Na+ is extracted. Operando XRD shows a significant change in the crystal structure (c parameter increases rapidly) as the occupancy of the Na (1) site decreases at high voltage. The local environments of Mn and V, monitored by operando XAS, remain rather symmetrical up to the extraction of two Na+, while both Mn and V show drastic local distortions when the third Na+ is extracted. These structural degradations are found to further progress when cycling to high voltage. This study presents important aspects of how local and long-range structure modifications can affect the electrochemical performance in multiredox NASICON materials.
dc.description.sponsorshipLaboratory of excellency for electrochemical energy storage - ANR-10-LABX-0076
dc.description.sponsorshipSpectromètre EXAFS Rapide pour Cinétiques Chimiques - ANR-10-EQPX-0045
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.title.enIrreversible electrochemical reaction at high voltage induced by distortion of Mn and V structural environments in Na4MnV(PO4)3
dc.typeArticle de revue
dc.identifier.doi10.1021/acs.chemmater.2c03787
dc.subject.halChimie/Matériaux
bordeaux.journalChemistry of Materials
bordeaux.page3181–3195
bordeaux.volume35
bordeaux.issue8
bordeaux.peerReviewedoui
hal.identifierhal-04200000
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04200000v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Chemistry%20of%20Materials&rft.date=2023-04-04&rft.volume=35&rft.issue=8&rft.spage=3181%E2%80%933195&rft.epage=3181%E2%80%933195&rft.eissn=0897-4756&rft.issn=0897-4756&rft.au=PARK,%20Sunkyu&CHOTARD,%20Jean-No%C3%ABl&CARLIER,%20Dany&FAUTH,%20Fran%C3%A7ois&IADECOLA,%20Antonella&rft.genre=article


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